Ningbo Kaxite Sealing Materials Co., Ltd.
About Us

Manufacturing Facilities

Manufacturing Facilities – Precision Engineered for Excellence

Kaxite Sealing's state-of-the-art manufacturing facility in Ningbo, China, is equipped with advanced CNC machining centers, heat treatment furnaces, and precision inspection equipment – all ISO 9001 certified.

Advanced Manufacturing Capabilities for Ring Joint Gaskets

Our modern facility is purpose-built for the production of high-precision ring joint gaskets and sealing solutions. With over 20,000 square meters of workshop space, we combine advanced machinery, skilled engineering, and rigorous quality control to deliver products that meet the most demanding specifications.

⚙️
CNC Machining Center
Multi-axis CNC lathes & milling machines for precision gasket manufacturing
🔥
Heat Treatment Furnaces
Controlled annealing & hardening processes for optimal material properties
📏
Precision Inspection Lab
CMM, optical comparators & hardness testers for 100% quality verification
🔬
Material Testing Lab
Spectrometer & tensile testing for material composition & mechanical properties
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Logistics & Warehousing
Efficient inventory management & global export packaging
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Pressure Simulation Rig
High-pressure testing to validate sealing performance

CNC Machining & Precision Manufacturing

Our production floor features over 50 CNC machine tools, including advanced multi-axis lathes and vertical machining centers. These precision machines are capable of handling a wide range of materials – from stainless steel (304, 316, 321) and Inconel to Monel, Titanium, and Hastelloy.

Key capabilities include:

  • Precision turning of oval, octagonal, RX, and BX ring gaskets
  • Complex profile machining for lens and specialty gaskets
  • Tight tolerance control within ±0.01mm
  • High surface finish quality (Ra ≤ 1.6μm)
  • Batch production from 10 to 10,000+ pieces

Our CNC operators are highly trained and follow strict process control protocols to ensure consistency across every production run.

Heat Treatment & Material Processing

Proper heat treatment is essential for achieving the hardness and material properties required by API 6A and ASME B16.20 standards. Our facility is equipped with:

  • Controlled atmosphere furnaces for oxidation-free heating
  • Quenching and tempering capabilities
  • Annealing furnaces for stress relief
  • Precise temperature control systems (±5°C accuracy)
  • Hardness testing after each treatment cycle

Every heat treatment batch is documented and traceable, ensuring consistent material properties and sealing performance.

Quality Inspection & Testing Laboratory

Our fully equipped quality control laboratory operates independently from production, providing unbiased verification of product quality. Key instruments include:

  • Coordinate Measuring Machines (CMM) for 3D dimensional inspection
  • Optical comparators for profile verification
  • Rockwell and Brinell hardness testers
  • Surface roughness testers (Ra/Rz measurement)
  • Spectrometer for chemical composition analysis
  • Universal testing machines for tensile and yield strength
  • High-pressure simulation rigs for sealing performance testing

All inspection equipment is regularly calibrated against international standards, and test records are maintained for complete traceability.

Production Capacity & Lead Times

With an annual production capacity exceeding 500,000 ring joint gaskets, we are equipped to handle both small-batch custom orders and large-volume procurement projects. Our typical lead times are:

  • Standard sizes: 7–15 days
  • Custom orders: 15–20 days
  • Express service: Available upon request (priority processing)

Our flexible production planning ensures we can accommodate urgent requirements without compromising quality.

Warehousing & Logistics

Our modern warehousing system ensures efficient inventory management and timely dispatch. Key features include:

  • Climate-controlled storage for sensitive materials
  • Real-time inventory tracking system
  • Professional export packaging to prevent damage during transit
  • Strategic location near Ningbo Port for fast global shipping
  • Flexible shipping terms: FOB Ningbo, EXW, CIF

Our logistics team coordinates with major freight forwarders to ensure reliable delivery to 60+ countries worldwide.

Facility Highlights

  • 20,000+ sqm workshop area
  • 50+ CNC machining units
  • 500,000+ annual capacity (pieces)
  • ISO 9001:2015 certified QMS
  • API 6A & ASME B16.20 compliance
  • Full in-house heat treatment
  • Independent QC lab with CMM & spectrometer
  • 7–15 days standard lead time
  • Export to 60+ countries
ISO 9001 API 6A ASME B16.20 CNC Precision
20K+
㎡ Workshop Area
50+
CNC Machines
500K+
Annual Capacity (pcs)
7-15
Days Lead Time

🔧 Continuous Investment in Technology

We regularly invest in new machinery and technology upgrades to maintain our competitive edge. Recent additions include 5-axis CNC machines and automated inspection systems for enhanced precision and efficiency.

🌱 Sustainable Manufacturing

Kaxite Sealing is committed to sustainable manufacturing practices, including energy-efficient processes, waste reduction, and recycling programs for metal scrap and coolants.

Visit Our Facility or Request a Virtual Tour

We welcome procurement managers, engineers, and partners to schedule an in-person visit or a live virtual walkthrough of our manufacturing facilities.

Schedule a Tour →
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